コード例 #1
0
        /// <exception cref="System.IO.IOException"/>
        public override void InitContent(DataInputFullStream data, ConstantPool pool)
        {
            int classIndex  = data.ReadUnsignedShort();
            int methodIndex = data.ReadUnsignedShort();

            className = pool.GetPrimitiveConstant(classIndex).GetString();
            if (methodIndex != 0)
            {
                LinkConstant lk = pool.GetLinkConstant(methodIndex);
                methodName       = lk.elementname;
                methodDescriptor = lk.descriptor;
            }
        }
コード例 #2
0
        /// <exception cref="System.IO.IOException"/>
        public override void InitContent(DataInputFullStream data, ConstantPool pool)
        {
            int method_number = data.ReadUnsignedShort();

            for (int i = 0; i < method_number; ++i)
            {
                int bootstrap_method_ref             = data.ReadUnsignedShort();
                int num_bootstrap_arguments          = data.ReadUnsignedShort();
                List <PooledConstant> list_arguments = new List <PooledConstant>();
                for (int j = 0; j < num_bootstrap_arguments; ++j)
                {
                    int bootstrap_argument_ref = data.ReadUnsignedShort();
                    list_arguments.Add(pool.GetConstant(bootstrap_argument_ref));
                }
                methodRefs.Add(pool.GetLinkConstant(bootstrap_method_ref));
                methodArguments.Add(list_arguments);
            }
        }
コード例 #3
0
        private static bool IsAnonymous(StructClass cl, StructClass enclosingCl)
        {
            // checking super class and interfaces
            int[] interfaces = cl.GetInterfaces();
            if (interfaces.Length > 0)
            {
                bool hasNonTrivialSuperClass = cl.superClass != null && !VarType.Vartype_Object.Equals
                                                   (new VarType(cl.superClass.GetString(), true));
                if (hasNonTrivialSuperClass || interfaces.Length > 1)
                {
                    // can't have multiple 'sources'
                    string message = "Inconsistent anonymous class definition: '" + cl.qualifiedName
                                     + "'. Multiple interfaces and/or super class defined.";
                    DecompilerContext.GetLogger().WriteMessage(message, IFernflowerLogger.Severity.Warn
                                                               );
                    return(false);
                }
            }
            else if (cl.superClass == null)
            {
                // neither interface nor super class defined
                string message = "Inconsistent anonymous class definition: '" + cl.qualifiedName
                                 + "'. Neither interface nor super class defined.";
                DecompilerContext.GetLogger().WriteMessage(message, IFernflowerLogger.Severity.Warn
                                                           );
                return(false);
            }
            // FIXME: check constructors
            // FIXME: check enclosing class/method
            ConstantPool pool       = enclosingCl.GetPool();
            int          refCounter = 0;
            bool         refNotNew  = false;
            StructEnclosingMethodAttribute attribute = cl.GetAttribute(StructGeneralAttribute
                                                                       .Attribute_Enclosing_Method);
            string enclosingMethod = attribute != null?attribute.GetMethodName() : null;

            // checking references in the enclosing class
            foreach (StructMethod mt in enclosingCl.GetMethods())
            {
                if (enclosingMethod != null && !enclosingMethod.Equals(mt.GetName()))
                {
                    continue;
                }
                try
                {
                    mt.ExpandData();
                    InstructionSequence seq = mt.GetInstructionSequence();
                    if (seq != null)
                    {
                        int len = seq.Length();
                        for (int i = 0; i < len; i++)
                        {
                            Instruction instr = seq.GetInstr(i);
                            switch (instr.opcode)
                            {
                            case opc_checkcast:
                            case opc_instanceof:
                            {
                                if (cl.qualifiedName.Equals(pool.GetPrimitiveConstant(instr.Operand(0)).GetString
                                                                ()))
                                {
                                    refCounter++;
                                    refNotNew = true;
                                }
                                break;
                            }

                            case opc_new:
                            case opc_anewarray:
                            case opc_multianewarray:
                            {
                                if (cl.qualifiedName.Equals(pool.GetPrimitiveConstant(instr.Operand(0)).GetString
                                                                ()))
                                {
                                    refCounter++;
                                }
                                break;
                            }

                            case opc_getstatic:
                            case opc_putstatic:
                            {
                                if (cl.qualifiedName.Equals(pool.GetLinkConstant(instr.Operand(0)).classname))
                                {
                                    refCounter++;
                                    refNotNew = true;
                                }
                                break;
                            }
                            }
                        }
                    }
                    mt.ReleaseResources();
                }
                catch (IOException)
                {
                    string message = "Could not read method while checking anonymous class definition: '"
                                     + enclosingCl.qualifiedName + "', '" + InterpreterUtil.MakeUniqueKey(mt.GetName
                                                                                                              (), mt.GetDescriptor()) + "'";
                    DecompilerContext.GetLogger().WriteMessage(message, IFernflowerLogger.Severity.Warn
                                                               );
                    return(false);
                }
                if (refCounter > 1 || refNotNew)
                {
                    string message = "Inconsistent references to the class '" + cl.qualifiedName + "' which is supposed to be anonymous";
                    DecompilerContext.GetLogger().WriteMessage(message, IFernflowerLogger.Severity.Warn
                                                               );
                    return(false);
                }
            }
            return(true);
        }